A real rarity here as this prototype of a 1991 Chicago Bulls NBA Championship ring was redesigned by the company before the final rings were made for the team. The 10K gold Balfour ring is a Size 11 and features real diamonds (total of 140 pts) surrounding the face, whose center showcases the team logo and "NBA CHAMPIONS" around a black background. The NBA logo is at the center of the left shank, which reads: "WORLD CHAMPIONS 1991" and "15-2," the team's record in the playoffs. The right shank features Michael Jordan's last name in bold block letters up top, his number 23 at the bottom and "61-21" record in between with ball-and-net art. The prototype is in NRMT condition. 43.6 grams.